```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Spring Boot核心注解解析</title>
    <link rel="stylesheet" href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css">
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    <script src="https://cdn.jsdelivr.net/npm/mermaid@latest/dist/mermaid.min.js"></script>
    <style>
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
            background-color: #f9fafb;
            color: #1f2937;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #6b46c1 0%, #3b82f6 100%);
        }
        .card-hover {
            transition: all 0.3s ease;
        }
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .annotation-icon {
            background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
        }
        .drop-cap:first-letter {
            float: left;
            font-size: 4.5rem;
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            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: #4f46e5;
            transition: width 0.3s ease;
        }
        .link-underline:hover:after {
            width: 100%;
        }
    </style>
</head>
<body class="antialiased">
    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20 md:py-32 px-4 md:px-0">
        <div class="container mx-auto max-w-5xl text-center">
            <h1 class="text-4xl md:text-5xl font-bold mb-6 font-serif tracking-tight">Spring Boot 核心注解解析</h1>
            <p class="text-xl md:text-2xl max-w-3xl mx-auto opacity-90 leading-relaxed">
                探索 Spring Boot 中最关键的核心注解，理解它们如何简化开发流程并提升应用性能
            </p>
            <div class="mt-10">
                <div class="inline-flex items-center px-6 py-3 bg-white text-indigo-600 rounded-full font-medium hover:bg-indigo-50 transition duration-300">
                    <i class="fas fa-arrow-down mr-2"></i>
                    <span>开始探索</span>
                </div>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <main class="container mx-auto max-w-5xl px-4 md:px-0 py-12 md:py-16">
        <!-- Introduction -->
        <section class="mb-16">
            <div class="drop-cap text-gray-700 leading-relaxed text-lg">
                Spring Boot 通过一系列精心设计的注解简化了 Spring 应用的配置和开发过程。这些注解不仅减少了样板代码，还提供了一种声明式的方式来构建企业级应用。本指南将详细介绍 Spring Boot 中最核心的几个注解，帮助开发者更好地理解和使用它们。
            </div>
        </section>

        <!-- Annotations Grid -->
        <section class="grid grid-cols-1 md:grid-cols-2 gap-8 mb-16">
            <!-- @SpringBootApplication -->
            <div class="bg-white rounded-xl shadow-md overflow-hidden card-hover">
                <div class="p-6">
                    <div class="flex items-center mb-4">
                        <div class="annotation-icon w-12 h-12 rounded-lg flex items-center justify-center text-white mr-4">
                            <i class="fas fa-rocket text-xl"></i>
                        </div>
                        <h2 class="text-2xl font-bold text-gray-800">@SpringBootApplication</h2>
                    </div>
                    <div class="text-gray-600 mb-4">
                        <p>标记一个Spring Boot应用的主类，同时包含了<code class="bg-gray-100 px-2 py-1 rounded">@Configuration</code>、<code class="bg-gray-100 px-2 py-1 rounded">@EnableAutoConfiguration</code>和<code class="bg-gray-100 px-2 py-1 rounded">@ComponentScan</code>注解。</p>
                    </div>
                    <div class="bg-indigo-50 border-l-4 border-indigo-500 p-4 text-indigo-800">
                        <p class="font-medium">使用方式：</p>
                        <p>通常将<code class="bg-indigo-100 px-1 py-0.5 rounded">@SpringBootApplication</code>注解放在项目的启动类上，作为整个应用的入口点。</p>
                    </div>
                </div>
            </div>

            <!-- @Configuration -->
            <div class="bg-white rounded-xl shadow-md overflow-hidden card-hover">
                <div class="p-6">
                    <div class="flex items-center mb-4">
                        <div class="annotation-icon w-12 h-12 rounded-lg flex items-center justify-center text-white mr-4">
                            <i class="fas fa-cog text-xl"></i>
                        </div>
                        <h2 class="text-2xl font-bold text-gray-800">@Configuration</h2>
                    </div>
                    <div class="text-gray-600 mb-4">
                        <p>标识一个类为配置类，用于声明Bean的创建和其他配置。</p>
                    </div>
                    <div class="bg-indigo-50 border-l-4 border-indigo-500 p-4 text-indigo-800">
                        <p class="font-medium">使用方式：</p>
                        <p>在Spring Boot应用中，可以使用<code class="bg-indigo-100 px-1 py-0.5 rounded">@Configuration</code>注解来定义配置类，其中可能包含<code class="bg-indigo-100 px-1 py-0.5 rounded">@Bean</code>注解用于声明Bean。</p>
                    </div>
                </div>
            </div>

            <!-- @SpringBootConfiguration -->
            <div class="bg-white rounded-xl shadow-md overflow-hidden card-hover">
                <div class="p-6">
                    <div class="flex items-center mb-4">
                        <div class="annotation-icon w-12 h-12 rounded-lg flex items-center justify-center text-white mr-4">
                            <i class="fas fa-layer-group text-xl"></i>
                        </div>
                        <h2 class="text-2xl font-bold text-gray-800">@SpringBootConfiguration</h2>
                    </div>
                    <div class="text-gray-600 mb-4">
                        <p>是<code class="bg-gray-100 px-2 py-1 rounded">@Configuration</code>注解的特殊化，用于标识一个类为Spring Boot的配置类。</p>
                    </div>
                    <div class="bg-indigo-50 border-l-4 border-indigo-500 p-4 text-indigo-800">
                        <p class="font-medium">使用方式：</p>
                        <p>通常情况下，不需要显式地使用<code class="bg-indigo-100 px-1 py-0.5 rounded">@SpringBootConfiguration</code>注解，因为<code class="bg-indigo-100 px-1 py-0.5 rounded">@SpringBootApplication</code>已经包含了它。</p>
                    </div>
                </div>
            </div>

            <!-- @Conditional -->
            <div class="bg-white rounded-xl shadow-md overflow-hidden card-hover">
                <div class="p-6">
                    <div class="flex items-center mb-4">
                        <div class="annotation-icon w-12 h-12 rounded-lg flex items-center justify-center text-white mr-4">
                            <i class="fas fa-question-circle text-xl"></i>
                        </div>
                        <h2 class="text-2xl font-bold text-gray-800">@Conditional</h2>
                    </div>
                    <div class="text-gray-600 mb-4">
                        <p>条件注解，根据给定的条件判断是否需要配置某些Bean或组件。</p>
                    </div>
                    <div class="bg-indigo-50 border-l-4 border-indigo-500 p-4 text-indigo-800">
                        <p class="font-medium">使用方式：</p>
                        <p>可以结合<code class="bg-indigo-100 px-1 py-0.5 rounded">@ConditionalOnProperty</code>、<code class="bg-indigo-100 px-1 py-0.5 rounded">@ConditionalOnClass</code>等条件注解一起使用，根据配置属性或类是否存在来决定是否创建某个Bean。</p>
                    </div>
                </div>
            </div>

            <!-- @Indexed -->
            <div class="bg-white rounded-xl shadow-md overflow-hidden card-hover">
                <div class="p-6">
                    <div class="flex items-center mb-4">
                        <div class="annotation-icon w-12 h-12 rounded-lg flex items-center justify-center text-white mr-4">
                            <i class="fas fa-search text-xl"></i>
                        </div>
                        <h2 class="text-2xl font-bold text-gray-800">@Indexed</h2>
                    </div>
                    <div class="text-gray-600 mb-4">
                        <p>标记一个类为可被Spring Boot自动配置的候选类。</p>
                    </div>
                    <div class="bg-indigo-50 border-l-4 border-indigo-500 p-4 text-indigo-800">
                        <p class="font-medium">使用方式：</p>
                        <p>通常与<code class="bg-indigo-100 px-1 py-0.5 rounded">@Configuration</code>一起使用，表示该类可能包含自动配置相关的Bean定义，Spring Boot会根据类路径中的条件进行自动配置。</p>
                    </div>
                </div>
            </div>

            <!-- @Import -->
            <div class="bg-white rounded-xl shadow-md overflow-hidden card-hover">
                <div class="p-6">
                    <div class="flex items-center mb-4">
                        <div class="annotation-icon w-12 h-12 rounded-lg flex items-center justify-center text-white mr-4">
                            <i class="fas fa-file-import text-xl"></i>
                        </div>
                        <h2 class="text-2xl font-bold text-gray-800">@Import</h2>
                    </div>
                    <div class="text-gray-600 mb-4">
                        <p>用于导入其他配置类或组件。</p>
                    </div>
                    <div class="bg-indigo-50 border-l-4 border-indigo-500 p-4 text-indigo-800">
                        <p class="font-medium">使用方式：</p>
                        <p>在Spring Boot中，可以使用<code class="bg-indigo-100 px-1 py-0.5 rounded">@Import</code>注解来导入其他配置类，进一步组合多个配置类来实现复杂的配置。</p>
                    </div>
                </div>
            </div>
        </section>

        <!-- Summary -->
        <section class="bg-indigo-50 rounded-xl p-8 mb-16">
            <h2 class="text-2xl md:text-3xl font-bold text-indigo-800 mb-6 flex items-center">
                <i class="fas fa-lightbulb mr-3"></i>
                <span>核心要点总结</span>
            </h2>
            <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-2 rounded-lg mr-4">
                        <i class="fas fa-check text-indigo-600"></i>
                    </div>
                    <div>
                        <h3 class="font-bold text-gray-800 mb-1">简化配置</h3>
                        <p class="text-gray-600">这些注解大大减少了Spring应用中的样板代码，使配置更加简洁。</p>
                    </div>
                </div>
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-2 rounded-lg mr-4">
                        <i class="fas fa-check text-indigo-600"></i>
                    </div>
                    <div>
                        <h3 class="font-bold text-gray-800 mb-1">自动装配</h3>
                        <p class="text-gray-600">通过条件注解和自动配置机制，Spring Boot能够智能地装配应用所需的组件。</p>
                    </div>
                </div>
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-2 rounded-lg mr-4">
                        <i class="fas fa-check text-indigo-600"></i>
                    </div>
                    <div>
                        <h3 class="font-bold text-gray-800 mb-1">模块化设计</h3>
                        <p class="text-gray-600">通过@Import等注解支持配置的模块化，便于组织大型应用的配置。</p>
                    </div>
                </div>
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-2 rounded-lg mr-4">
                        <i class="fas fa-check text-indigo-600"></i>
                    </div>
                    <div>
                        <h3 class="font-bold text-gray-800 mb-1">提高效率</h3>
                        <p class="text-gray-600">合理使用这些注解可以显著提升开发效率和代码可维护性。</p>
                    </div>
                </div>
            </div>
        </section>

        <!-- Visualization -->
        <section class="mb-16">
            <h2 class="text-2xl md:text-3xl font-bold text-gray-800 mb-8 flex items-center">
                <i class="fas fa-project-diagram mr-3 text-indigo-600"></i>
                <span>注解关系图解</span>
            </h2>
            <div class="bg-white p-6 rounded-xl shadow-md">
                <div class="mermaid">
                    graph TD
                    A[@SpringBootApplication] --> B[@Configuration]
                    A --> C[@EnableAutoConfiguration]
                    A --> D[@ComponentScan]
                    B --> E[@SpringBootConfiguration]
                    B -->|常配合使用| F[@Bean]
                    C -->|基于| G[@Conditional]
                    G --> H[@ConditionalOnClass]
                    G --> I[@ConditionalOnProperty]
                    G --> J[@ConditionalOnMissingBean]
                    B -->|可配合| K[@Import]
                </div>
            </div>
        </section>
    </main>

    <!-- Footer -->
    <footer class="bg-gray-900 text-gray-300 py-10">
        <div class="container mx-auto max-w-5xl px-4 md:px-0">
            <div class="flex flex-col md:flex-row justify-between items-center">
                <div class="mb-4 md:mb-0">
                    <h3 class="text-xl font-bold text-white mb-2">技术小馆</h3>
                    <p class="text-gray-400">分享前沿技术，探索编程之美</p>
                </div>
                <div>
                    <a href="http://www.yuque.com/jtostring" class="text-indigo-400 hover:text-indigo-300 transition duration-300 link-underline inline-block">
                        <i class="fas fa-external-link-alt mr-2"></i>
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                    </a>
                </div>
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```